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FAQ: Does .NET have any compression/zipping capabilities?

Posted By:      Posted Date: May 22, 2011    Points: 0   Category :.NET Framework

Does .NET have any compression/zipping capabilities?

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I'm developing an image storage service and for that purpose, I'm resizing the uploaded images in order to get thumbnail and tiny-sized versions of the source image. This works just fine. However when looking into the actual files, I realized that the resized images "weight" actually more on the disk than the source. Here's an example:

- Source image, 1024x768, JPEG, 94.17 KB
- Medium sized image, resized by my code: 500x375, JPEG, 465.47 KB
- Small sized image, resized by my code: 150x112, JPEG, 47.05 KB 

Something is clearly wrong here. The medium sized image is twice smaller in resolution, but weights more than 4 times than the source image.

Here's an excerpt of the code that actually resizes images:

private void ResizeImage(string originalFile, string NewFile, int NewWidth, int MaxHeight, bool OnlyResizeIfWider, string directory)
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            // Prevent using images internal thumbnail

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                if (FullsizeImage.Width <= Ne

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    protected void resizeImage(String fileName, String imagePath, int resizeWidth, int resizeHeight)
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        originalImage = System.Drawing.Image.FromFile(strImageFolder + "original\\" + fileName);

        // Get Original Image Dimensions
        int originalHeight = originalImage.Height;
        int originalWidth = originalImage.Width;

        // Set new Image dimensions
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        int newHeight = (newWidth * originalHeight) / originalWidth;

        // Creates new resized image
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Now th
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